Antioxidant alkaloid from the South China Sea marine sponge Iotrochota sp.

Identification species of Demospongiae sponge at Assaluyeh Persian Gulf

The marine environment is a rich source of biodiversity and chemical compounds, and based on biodiversity knowledge, it is believed that the highest biodiversity is related to living organisms in tropical and semi-equatorial regions. The goal of this study was the biodiversity of Demospongiae sponge in Assaluyeh area in May 2018. Sampling carried oyu by using Coadrat in three sites with three r...

Graphical Abstract Antitrypanosomal iotrochamides A and B from the Australian marine sponge Iotrochota sp

Draft Genome Sequence of “Candidatus Synechococcus spongiarum” m9, Binned from a Metagenome of South China Sea Sponge Theonella swinhoei

"Candidatus Synechococcus spongiarum" represents the widespread cyanobacterial symbionts found in marine sponges with relatively high genomic variability and likely important ecological roles. We present here the draft genome sequence of "Candidatus Synechococcus spongiarum" m9, which was assembled from a metagenome of Theonella swinhoei sampled in the South China Sea.

Distribution and Abundance of Archaea in South China Sea Sponge Holoxea sp. and the Presence of Ammonia-Oxidizing Archaea in Sponge Cells

Compared with bacterial symbionts, little is known about archaea in sponges especially about their spatial distribution and abundance. Understanding the distribution and abundance of ammonia-oxidizing archaea will help greatly in elucidating the potential function of symbionts in nitrogen cycling in sponges. In this study, gene libraries of 16S rRNA gene and ammonia monooxygenase subunit A (amo...

Topsensterols A–C, Cytotoxic Polyhydroxylated Sterol Derivatives from a Marine Sponge Topsentia sp.

Three new polyhydroxylated sterol derivatives topsensterols A-C (1-3) have been isolated from a marine sponge Topsentia sp. collected from the South China Sea. Their structures were elucidated by detailed analysis of the spectroscopic data, especially the NOESY spectra. Topsensterols A-C (l-3) possess novel 2β,3α,4β,6α-tetrahydroxy-14α-methyl Δ(9(11)) steroidal nuclei with unusual side chains. ...